You've heard all the reasons to stop smoking. You may have thought about quitting or even tried it a time or two. But you may need a little help. Learn how to get ready to quit, how to quit, and how to stay quit for a healthier, smoke-free future.

Chronic obstructive pulmonary disease (COPD) is a name given to a group of diseases that limit the flow of air in and out of your lungs. COPD includes chronic bronchitis and emphysema. Long-time cigarette smoking is the most common cause of COPD.